摘要
随着科技的发展,水文测站逐渐实现流量实时自动监测。此时,如何在保证精度的前提下利用较少的流量监测数据进行引排水量计算是亟待解决的问题。为了研究在数据量相对较少、流量自动监测数据精度较高条件下的引排水量计算方案,根据镇江市谏壁闸水文站和九曲河闸水文站两个测站不同安装方式的定点式声学多普勒流速仪多年的实时流量自动监测数据,以5 min的实时监测流量数据为基准,按不同工况和不同时间间隔分别对两个测站2018~2020年流量数据进行引排水量计算并进行对比分析,评价引排水年总量和单次引排水量的计算精度,在满足规范要求的基础上,得到数据精简后的最大时间间隔分析成果。研究成果表明:以30 min时间间隔进行各类工况下的引排水量计算,其精度相对较高,能满足相关规范要求。研究结果可为沿江沿海引排水量实时自动监测数据的精简分析提供借鉴,并可用于水文资料整编和报汛。
With the development of science and technology,hydrological stations have gradually realized real-time flow automatic monitoring.At this time,how to use less flow monitoring data to calculate the water diversion and drainage under the premise of ensuring accuracy is an urgent problem to be solved.In order to study the water diversion and drainage calculation scheme based on the flow automatic monitoring data with relatively small amount of data and high precision,the real-time flow automatic monitoring data of fixed-point acoustic Doppler velocimeter installed in different ways at Jianbi sluice hydrological station and Jiuquhe sluice hydrological station in Zhenjiang City for many years was selected.Taking the 5-minute real-time flow monitoring data as the standard,according to different working conditions and different time intervals,the water diversion and drainage of the two stations from^(2)018 to 2020 was calculated and compared,and the result accuracy of annual total diversion and drainage volume and single diversion and drainage volume were evaluated.Finally,the maximum time interval analysis results after data simplification on the basis of meeting the specification requirements were obtained.The results show that the calculation of water diversion and drainage under various working conditions at 30 minute intervals has relatively high accuracy and can meet the requirements of relevant specifications.The research results can provide reference for the simplification and analysis of real-time automatic monitoring data of water diversion and drainage along the river and coast,and can be used for hydrological data compilation and flood reporting.
作者
王萍
谢运山
姚允龙
WANG Ping;XIE Yunshan;YAO Yunlong(Jiangsu Province Hydrology and Water Resources Investigation Bureau,Nanjng 210029,China;Zhenjiang Branch of Jiangsu Province Hydrology and Water Resources Investigation Bureau,Zhenjiang 212028,China)
出处
《人民长江》
北大核心
2022年第8期94-99,共6页
Yangtze River
关键词
引排水量
实时自动监测
精简分析
声学多普勒流速仪
水文资料整编
谏壁闸水文站
九曲河闸水文站
water diversion and drainage volume
real-time automatic monitoring
simplification and analysis
acoustic Doppler velocimeter
hydrological data compilation
Jianbi sluice hydrological station
Jiuquhe sluice hydrological station
